CVE-2026-81826 Flowintel Fails to Invalidate Active Sessions After Password Change

Critical 9.1 Published Updated

Attackers with stolen session tokens retain access after password changes because sessions are not invalidated, requiring a patch to enforce session termination.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-81826?

CVE-2026-81826 is a critical vulnerability in flowintel, published on 27 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Affected versions of Flowintel do not revoke existing authenticated sessions when a user’s password is changed.

This means that if an attacker already possesses a valid session—for example, from prior access or a stolen session token—the victim changing their password does not terminate that attacker’s access. The session remains usable until it expires naturally. The upstream commit describes this directly as:

“session keeps working until it expires.”

The fix detects password changes and explicitly invokes _invalidate_user_sessions(user.id) after the database update. This is applied in both edit_user_core() and admin_edit_user_core().

Version impacted >=3.3.0

Weakness: CWE-613, CWE-384

Which versions are affected by CVE-2026-81826?

How do I fix CVE-2026-81826?

No fix has been published for CVE-2026-81826 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-81826 being exploited?

There is no known exploitation of CVE-2026-81826 in the wild and no public exploit code.

Sources

Also known as GHSA-m2jr-93w5-4c48.

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